I've travelled to Chile, Argentina, UAE, Bahrain, China and a handful of other countries I won't mention (CIA NIGGERS BE FROTHING AT THE MOUTH RIGHT NOW). I've experienced preferential treatment at restaurants and hotels only when they heard my English, but the holes still looked at me like a lump of melted plastic and were nothing beyond professional.
In South America I was seen as just another arrogant gringo here to throw around his tourist money. People kind of look at you with mild disdain, if they see you're White (probably for historical reasons). In the Midde East businesses and the South Asian service people working in those places treat you the way you would expect to be treated with good service in Europe because you're assumed to be a Westerner, and treat the shitskins like second class citizens (because they are in those places).
But I don't know what this "amazingly well" treatment is supposed to look like. Am I supposed to get free limousine rides? Have free masseuses and prostitutes sent to my room? Have complimentary dinners on the house? I honestly don't know WTF this amazing treatment is supposed to be, and please don't say it's because I'm blind to my privilege. JFL
Sure, I'll grant that they won't immediately assume you're a Westerner, if you don't look White, but their tune will change for the better once they do.
If you travel as a sandnigger to a foreign Arabian country, yeah, they probably will treat you the same as they would their locals, minus or plus the difference they'd hear from your accent. If you travel to Japan as a sandnigger, they'd treat you with the kind of xenophobic racism you'd expect from East Asia. Huwhites have an edge in a place like Japan (because of the cucking of August 1945 KEK), but even there you'll find places that won't accept foreign patronage.